This fear towards the Chairman is even greater than the social anxiety towards others.
Little Fox actually doesn't understand why she feels this way; she knows she shouldn't treat Senior Sister and Chairman differently, but sometimes a person's perception and emotions are truly uncontrollable.
The "Source of Desire" talent has brought Audrey an indelible childhood shadow, leading to her current situation where she hesitates to meet people, but this talent isn't entirely a drawback.
The ability to perceive others' dark and vile desires towards her is indeed distressing, but ignoring those unbearable images and thinking from another perspective, it's a kind of Mind Reading Technique.
Succubi have always relied on the power of the Source of Desire to hunt efficiently, because mastering a person's desires equates to mastering their weaknesses, and those exposed are easily controlled, not frightening at all.